CAS:123-31-9
Molecular Formula:C6H6O2
Molecular Weight:110.11
EINECS:204-617-8
Synonyms:HYDROQUINONE USP(P); p-Benzediel; HYDROQUINONE(P); 1,4-Benzenediol (hydroquinone); 1,4-Dihydroxy-benzeen; 1,4-Dihydroxybenzen; 1,4-dihydroxybenzen(czech); 1,4-Dihydroxy-benzol; 1,4-Diidrobenzene; 4-Hydroxyphenol; alpha-hydroquinon
Hydroquinone, also known as hydroquinone or 1,4-benzenediol. Molecular formula C6H6O2. Molecular weight 110.11. Colorless or white crystals. It is easy to change color when exposed to light in the air. Its aqueous solution can oxidize to brown in air, and oxidizes faster in alkaline media.
| Product Name: | Hydroquinone | Batch No. | JL20211025 |
| Cas | 123-31-9 | MF Date | OCT.25,2021 |
| Packing | 25KGS/BAG | Analysis Date | OCT.25,2021 |
| Quantity | 5MT | Expiry Date | OCT.24,2023 |
| Item | Standard | Result | |
| Appearance | White crystalline powder | Conforms | |
| Assay % | 99-101 | 99.9 | |
| Melting point | 171-175 | 171.9-172.8 | |
| Residue after ignition % | ≤0.05 | 0.02 | |
| Fe % | ≤0.002 | ＜0.002 | |
| Pb % | ≤0.002 | ＜0.002 | |
| Conclusion | Conforms | ||
hydroquinone is a pigment-lightening agent used in bleaching creams. Hydroquinone combines with oxygen very rapidly and becomes brown when exposed to air. Although it occurs naturally, the synthetic version is the one commonly used in cosmetics. Application to the skin may cause allergic reaction and increase skin sun sensitivity. Hydroquinone is potentially carcinogenic and is associated with causing ochronosis, a discoloration of the skin. The u.S. FDA has banned hydroquinone from oTC cosmetic formulations, but allows 4 percent in prescription products.
Usually packed in 25kg/drum,and also can be do customized package.
